Chemical fire apparatus.



E. W. DRECKSCHMIDT.

CHEMICAL FIRE APPARATUS.

APPLICATION FILED JULY 2!.1914.

17;)(213703 Zia/am Zfl Freak/9217137;

Patented Mar. 19, 1918.

'll'll i SCHMIDT, a citizen present invention. 1 i i i Fig. 3 is a crosssect-ion substantially on the line 33 of Fig. 1 illustrating certain details ofconstruction; and

i or other suitable The tank UNITED STATESPATEN fToaZZ whom itmayconcern: up 1 Befit known thatpI, EDWARD W .JDREGK of theUnited States, residing at thefcity of St. Louis andState "of n Missouri, have invented a new and useful I Chemical FireApparatus, of hich the f ,lowmgis a specification. M1 1 v This invention relate-site chemicallfire a paratus, and consists in the novel design, a

rangement and combinationof partsherei An obj eetof the IIIVQIltlOII lS to provide an efficient apparatus fromiwhich afireeXtinQ 1 guishing fluid will be ejected by means of a gas generated by the mixing of suitable u hemicals, said gasiorming chemicals being normally contalned 111 separate compartr;

ments which are adapted to be communi+ cated hy operation of a plunger WhiCllCiG:

stroys the i partition wall; separating the 3 chemleals and perrnittingl thesameiito mix forthe purposeof formlng the gas Another object of the invention 1 i. pi oa vide separate containersfor the gas-forming chemicals whereby the same will be protect ed from the fireextinguishingliquid and v preventedpfrom mixing witheach other until i the partitions separatingthe chemical com: partments is brokenby operationcf aplum ger for: operating theapparatus.

i f Other valuable featuresRand advantages will be apparent from the following detailed disclosure taken in connection with the ace: companying drawing inWhich h I Figure l is aside elevation partially in ction of the complete apparatus embody-v .ng myinvention. 1

Fig; 2- is a cross section taken submmtlally ;on the line 2 -2 of Fig. 1, illustrating in further detail certain of the elements of the;

Fig; dis a vertical section more clearly to show the manner inwhich they are assembled. v i 1 d t v p In the embodiment of the inventionlillus trated in the drawing I have shown atank or container 1 which made of spun metal,

material and which is In 1 the fire extingu shi or container 1 is provided at 1 sf Applicetihn filed m 1914.:

or cont siniilarpurposes i i i i v :In order to solate the gas genera ng chemicals from each other and also s fromy illustrating inl detail the separate gas generating chemlcal compartments, theparts belng \separated cnnnrcnn ruin Airg ns spccificaticiiof Letter loiver endywith a discharge 2 rom which the liquid contained thereinklsiforced in a manner that i will i be hereinafter more fully explained; :Thesize onshapeofthe tank or container jl isg not material andit will beiunderstood thaua container to ac comniodat anydesiredquantity lnay be vided:

Thetank or container 1 is provided W th a removable 1 closure which has threaded engagement withthe neck of the lclo-sureas indicated at qA rubber gasketnfiisyprovided to sealthejoint between the cap or closure? and the container so as to prevent theijsloilling of the liquidcontained in the j d tanlgfiand also; prevent vdeterlorationl 0f the chemical solution; usedas an extinguishing liquid, by 'the atmosphere. .The closure 3 is, alsoqprovided with a polygonal bossfiwhich maybe engaged by: a Wrench for securelv same upon the neck oi the tank er 4A plunger is mounted in seating an axial opening in said closure 3, saidyplunger being held in raised position; by an tension spring SencircIing the stemthere IA series of inwardly projecting lugsfiQ are provided onthe inner Walls of the tank 0 cont inerl and are disposed at a consid able listance bBlOW the neck .ofv the con- 1 asclearlyfjindicated;in Fig. 1::of the drawmg Thesedugs '9provide meansi for Supporting thegas genera-ting chemical co talners y i d I For the purpose of generating a; gas for 1 driving the fire extinguishing liquid from i in thecontainer throughthe spigot2 a" qu l I tit-yof carbonate oflsoda may be mixedfwith aquantity of hydrochloricflacid, or; if de-y ed or a sired, 1 other chemicals may be util the fire extinguishing liquid I i provide sep rate containers; for the component gasjgge erating chemicals, said containers belng Inersed in the fire jektinguishing liquidfwlth in the tank; It isanobjectfof the present inventionto provide forthe completeisola tion of thevarions chemicals until itis de-f ired to forcethefire extinguishing liquid from thefcontainer 1, i i

As illustrated in the dra ing,I l1ave shoWna cylindrical acid container IOWhich is provided with a constricted threaded neck of anopen cylinder is provided for bonate of soda or similar chemical. The

container 12 is proyidedat itslower end threaded hall 18"; thus providing means for connecting; the tWo' with an internally containers by threaded engagement. A partition Wall 14: composed 0151111021 91 similar fragile i and readny breakable mate'- rial, is interposed between;thexcontasiner 10.

and the container 12. Encircling the partitionluand;superimposed thereon isra rubs her? gasket 15 which; a with the partililon 14;

is" adapted to" providea' sealcl closure bee I tween the t uio containers".

. l'lhe': container\ 121* is 'eproyided'i at: itss'up per closure ,16fco1nposed iofilikesmate-v end Wit a rialras iss utilizedafor the pa rtition 14a The: cliosure 16 is held'in place by a cap 137 m "tl foi-m bf annular ring whith' istpro- Vans 1 with: threaded flanges; ad apted tow be screwed on to the upper threaded" end: of thewontainer lfl. In" order to form a sealed joint betwten the map 17 and the container 12 -1 provide" rubber gaskets 18* which are" supported by annular flange 19 formed .on tlie" exterior wall 11 ofthe containeh 1-2.

The'carb'caate of soda or like chemical" is c'ohtain'ecl 'in eapsuIe' 20 furineddr'oin tele scb'ping sections comp'csed of wire gauze, or

other reticulhted material.

aser-rhe ring in formed integral" with a the exterio'rywall' oftlie? c'ontaine 12 pro v v c in cheniical containers Within tliertanli or cd inehlQi Thesupper-t p o for" the gas generating" cliefnlcal fcbnta1ner1scomprises a" cage or supporting flame, inc ted-*- ing? a ring 22" anda suspended disk 2$jsaricl= being supporte'd b low thebOiitdlH' -Of disk the container 10 In'eans 0f ayplurality of tiero'd's 24:, supported one end by said:

'ringaQQ: a A 1.

A cage or supporting frame thus termed providesa reinforcement for the co'ntamers.

When the containers areformed of: glass on" other: breakable inateriah and the tank sltculd'llbe accidentally tilted," the walls of ontainerszare prevented fi-omstrikingr againsti. the: walls of" theiltanle and becoming accidentally broken. It is not" 'a'ta'll esselrthe l tijal. that the" cage or supporting" fi'amei he used in: all instances; but the serrated ring 21 may hevseate d 1 directly 0h t 1e lugs 9. and the; cage; on supporting frame be 1 dispensed W-itli. lltwissprreferredl how-mam include" the: name: for: the reasons mentioned: It. Willtbe. noted thattwhen said ring 22' isi'sea't'ed on; the lugs 9' and: thefcontainers' 10.= and 12 lowered 1 into position that the bottom or the container- 10 will rest upon therdi'sk 23 and that the serrated ring 21 formetlsonthe up per container will rest upon thering-22.

The gas 1generating chemical containers are thus: i111 position so that a When the pllmger 7 is: depressed the closure 16 will be-broken through and thecapsule containing "oneno'fz gas generated chrhicalsi the gas generating chemicals Will be forced downwardly through the partition 1& and

iw illb'e"immersed"intheliquid in the lower containeri As both the closure 16 and the partition flare broken in this operation, the v "enerated Within the container- 10 Will outwardly through the openend" of thecontainen l21upon the liquid in the tank 1, thereby forcing the same from the spigot 2, the pressure depending up on v the. amount ottheigassgeneratecl lay the mixing at the ;Ia. ractme.1a1s esse' tia l. that: the con:- talliers and 12 shallibe formed ofinatd' llttll which is.=free from a corrosion or. deterie oration from the chemicals-= surrounding them, bri contained therein, 1],. therefore,

prefer. to construct: these parts ofglass or othe-n materialb that; is entirely free from chemical action.

7 The; construotlona which Ii have provided also permits-the ready rc'chargev of the 1= appa+ ratus after. the oontents lias" been! expelled therefrom; it being only necessary to' pro I Videasdditional"v chemicals and ta replace the partition; l l andx the closure: 16;

It Willi also bexnotetli that the several parts ma heireadily assembled and plhced in proper. position. for future operation in rechargingwthe apparatus:

1 am aware that: numerous;modifications in ncletai-ls. bfl constructidn may he'ana'de Withontdeparting hmmmhes h-it and scope or the inventibii; anda It. do: not liinitt myself, therefbre; 1 tonth'eiexact disclosure but What It claim and .clcsireto secnreseby Letters Pat entl is v be forced". tlirc'ugli said i partition upon the depression of said plnn'gen whereby the contents fcf' the capsult'r aie brought into contact a with the: material in the lower coir s tain'eri to forrn a gas whereby the liquid in tli'e'thnk risexpelled from tl'retanlt', said do sure and partition being r elnovable after being broken a'nch replaceable by unbroken ones in connectionwitlr the same containers aiten: n operation and: use oh the" apparatus 2. In a cliemical fine apparatus; the Cornbi'nati'on: with a fire extinguishing liquidtank, of a pair of chemical containers sup ported therein; one of sa i'd" c'ontainer's h eing 1t A chemicall l firer apparatus; con-aprising plungehnan'd said c'a 'psuleheing' adapted to v brought togetherin the'lovver container toing frame carried :by said supportsand" ex tending" to the lower: end of said container, a removable frang ble partition dividing said container into two non-communicating chambers, a frangible closure for the upper endof said C'Olltfllllfil', a removable cap for tlieupper end'of said container for holding said closure in position, a sealing gasket between the cap and the contalner, a removable capsule supported by the partition .Wflll between the chambers, said capsule being adapted to, contain a powdered chemical and arranged in axial allnement unththel plunger, whereby When said plunger isdepressed the upper closure is broken and the T capsule-forced through the partition between the-chambers, and means for controlling the outlet of'fluidfrom' said tank.

9. Ina chemical fire apparatus, a tank, two noircommunicating containers 1 therein adapted to contain two gas forming chemicals, supports extending from the [side Wall of the tank for supporting said chemical containers, a ring on one of said containers,

an additional ring supporting said firstn'amed 'ring and adapted to be supported by said supports, a plate at the bottom of the other of said containers, and tie-rods extending between said additional ring and said plate whereby said containers are supported centrally Within the tank.

10. In achemical fire apparatus, a plunger extending through and operativeliy supported by one Wall of said tank anon-corrodible contalner adapted to oonta n: a gas forming "material; supported in said tank in. alinementwith saidplunger, an ad ditional non-corrodible container adapted to contain another gas forming material supported in said tank. alinement with said 5 plunger and the first' named container, a

removable and replaceable partition ivallbe- I tween and separating said containers and supporting the gas forming materlal 1n the second-named conta1ner,means for supportmg and holding said partition "named container mounted adjacent to the inner end of the plunger, said closure and said partition Wall loei'ng adapted to be broken uponthe depression of said plunger whereby said forming materials are connection With the same containers. after an operation and use of the apparatus.

tank,

7 Wall between said containers, and a removable and re, 'placeable frangible closure for the second--v '11: Ina chemical fire apparatus, a tank, a plunger extending through and opera; tively supported by one 'o'f'the Wallsof said tank, container arranged to contain a gas formingmaterial supported in said tank, a removable and replaceable frangible Wall closing the end of'saidcontainer which is toward said plunger and arranged to support another gas forming material, an additional container arranged'to' inclose the gas forming materlal Which is supported by said well, a removable and replaceablef-rangible closure for the end of saidaddi-' tional container Which is toward saidiplunger, saidclosure being adapted to be broken upon the depression of said plunger, and a device Within said additional container Wherebysaid partition Wall Willbe broken upon the depression of said plunger and the gasformmg material 111 said additional contamer discharged into the first-named. container said closure andpartition Wall being removable after being broken and replaceable by unbroken ones in connection with.

the same containers after an. operation of the apparatus.

12. In a chemical fire apparatus, a tank, a plunger entendingthrough and operatively supported by one'of the Walls of said tank, a container arranged to contain 111 the bottomthercof a gasv forming material supported in said tank in alinement With said plunger,

a removable and replaceable frangible partition Wall dividlng the upper portion of said container from theloiver portion there of and arranged to support another" gas forming material, a removable and replaceable frangible closure for the upper end of said container which is adjacent to said plunger adapted to be broken upon the depression ofsaid plunger, and means Wl'lQI9-. by said partition wall will also be broken upon the depression of said plunger whereby.

the gas forming material supported by said part1t1on1s discharged into the material in the lower portion of tlifiCOllttllIlGIjytO formla gas whereby the liquid in the ta-nlris en.

pelled therefrom, said closure and partition Wall being removable after being broken and replaceablebyunbroken ones in connectionwith the same containers after an op eration and use of the apparatus In Witness: whereof, I have signed, this specification in the presence of two subscribing Witnesses.

ETDVVARD W. DRECKSGHBHD'I. lVitnesses:

K. R. ldoDoNALo, L. O; :KINGSLAND I copies ot thil patent may be obtained. for fivecents each, by addressing. the Commissioner of, reiterate, .washingtomnc. 

